CPM Homework Help : CC1MN Problem 10-108

Zaria wants you to solve this puzzle: “I am thinking of a number. If you divide my number by $\mathit{2}$ and subtract $\mathit{4}$ , you will get $\mathit{2}$ . What is my number?” Show how you know your answer is correct.

Hint:

Try a number. For example, $100$ .
$100\div2-4$
$50-4$
$46$ (too big)

Hint 2:

Since it is too big, try a different number.